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Title: jincheng Download
 Description: Write three different programs cmd1.c, cmd2.c, cmd3.c, each program output a sentence, respectively compiled into executable file CMD1, cmd2, cmd3. Then write a program to simulate the function of the shell program, which outputs a command prompt "%", and then according to the string input by the user (the corresponding command name), to create a sub process for the corresponding command and let it execute the corresponding program.
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jincheng.docx 41344 2018-05-21

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